Emerikol
Legend
Isida that would be the only way to do it even if I was a narrativist in my thinking.  I don't think a player should decide something that the character he is playing should never be able to decide.  That is just my preference.  I much prefer acting solely in actor mode.  I'm not even sure I want the GM deciding arbitrarily.  Make a roll and let fate decide.  I'd probably have the bad case happen on a critical miss.